An Attribute Reduction Algorithm Based on Fuzzy-rough Set and It''''s Application in Medical Image Area
一种基于模糊粗糙集理论的算法及其在医学影像中的应用

Accurate location of license plates in images plays an important role in automatic license plate recognition systems. A novel and effective method is proposed in this paper for automatic license plate location taking advantages of symmetry of the car body and employing color clustering. In this method, scene (night or day) of the image to study is first identified. For each type of scene, a specific algorithm is designed to locate the license plate in it. A double location algorithm is implemented for night images, and another one based on symmetry finding and rules regarding text related characteristics in the region of license plate for day images. Experimental results show an accuracy of 95.7% for both image scene classification and license plate location.